Buoyancy improvement is the result of the use of a technical suit to increase swimming speed. Hydrostatic lift and lung volumes were measured in 9 competitive swimmers while wearing a “standard” swimsuit (S) or a full body synthetic rubber suit (Xg). The average values of the hydrostatic lift were 14.51 ± 4.53 N with S and 14.33 ± 3.99 N with Xg. The average values of lung volumes when wearing S and XG were VC 6.31/6.14 L, ERV 2.12/1.79 L, VT 0.94/0.88 L, IRV 3.26/3.47 L, respectively. A strong thoracic and/or abdominal compression caused by the technical suits may be related to the observed reduction in the chest and abdominal circumferences during maximal inspiration and expiration, as well as to the reduction in the lung volumes and in the hydrostatic lift. The improvement in performance obtained by wearing Xg is not related to better static buoyancy.

The effect of wearing a synthetic rubber suit on hydrostatic lift and lung volume

CORTESI, MATTEO;GATTA, GIORGIO
2010

Abstract

Buoyancy improvement is the result of the use of a technical suit to increase swimming speed. Hydrostatic lift and lung volumes were measured in 9 competitive swimmers while wearing a “standard” swimsuit (S) or a full body synthetic rubber suit (Xg). The average values of the hydrostatic lift were 14.51 ± 4.53 N with S and 14.33 ± 3.99 N with Xg. The average values of lung volumes when wearing S and XG were VC 6.31/6.14 L, ERV 2.12/1.79 L, VT 0.94/0.88 L, IRV 3.26/3.47 L, respectively. A strong thoracic and/or abdominal compression caused by the technical suits may be related to the observed reduction in the chest and abdominal circumferences during maximal inspiration and expiration, as well as to the reduction in the lung volumes and in the hydrostatic lift. The improvement in performance obtained by wearing Xg is not related to better static buoyancy.
Biomechanics and Medicine in Swimming XI
57
59
Cortesi M.; Zamparo P.; Tam E.; Da Boit M.; Gatta G.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/93806
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